grokify/mogo

package timeutil

import (
    "time"
)

// QuarterProjection takes a time and numeric value, estimating the
// value at the end of the quarter using a straight-line projection.
func QuarterProjection(dt time.Time, current float64) float64 {
    qtStart := quarterStart(dt)
    durQ2D := dt.Sub(qtStart)
    qtNext := TimeDT6AddNMonths(qtStart, 3)
    durQtr := qtNext.Sub(qtStart)

    projection := current / durQ2D.Seconds() * durQtr.Seconds()
    return projection
}

/*

Gap
Actual
Run Rate
Target

Target
Actual
Run Rate
Gap

Target
Shortfall

Current

*/